Home / 280,408.08-386,985.24-159,554.46

Finding the Fourth Proportional to 280,408.08, 386,985.24 and 159,554.46

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Solution

The fourth proportional to 280,408.08, 386,985.24 and 159,554.46 is: 220,197.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,408.08 : 386,985.24 = 159,554.46 : x
  2. Step 2: Convert to fraction form
    280,408.08/386,985.24 = 159,554.46/x
  3. Step 3: Cross multiply
    280,408.08x = 386,985.24 × 159,554.46
  4. Step 4: Simplify right side
    280,408.08x = 61,745,220,996.17
  5. Step 5: Solve for x
    x = 61,745,220,996.17/280,408.08
  6. Step 6: Final answer
    x = 220,197.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.